diff --git a/.codecov.yml b/.codecov.yml
deleted file mode 100644
index 41846eaa8..000000000
--- a/.codecov.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-coverage:
-  precision: 2
-  round: up
-  range: "30...60"
-
-  status:
-    project:
-      default: off
-    patch:
-      default: off
-    changes:
-      default: off
diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index b9d4f0926..823592b74 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -18,6 +18,9 @@ concurrency:
 
 jobs:
 
+  # build
+  #############################################################################
+
   build:
     strategy:
       fail-fast: true
@@ -44,6 +47,18 @@ jobs:
           name: build_${{ matrix.runner }}
           retention-days: 1
           path: coatjava.tar.gz
+      - name: collect jacoco report
+        if: ${{ matrix.runner == 'ubuntu-latest' }}
+        run: validation/jacoco-aggregate.sh
+      - name: publish jacoco report
+        if: ${{ matrix.runner == 'ubuntu-latest' }}
+        uses: actions/upload-pages-artifact@v2
+        with:
+          path: publish/
+          retention-days: 1
+
+  # tests
+  #############################################################################
 
   test_coatjava:
     needs: [ build ]
@@ -119,3 +134,21 @@ jobs:
     steps:
       - name: pass
         run: exit 0
+
+  # deploy web pages
+  #############################################################################
+
+  deploy_web_pages:
+    if: ${{ github.event_name == 'push' }}
+    needs: build
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: deployment
+        id: deployment
+        uses: actions/deploy-pages@v2
diff --git a/.gitignore b/.gitignore
index 1a1360a8f..77c0fd6ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 /coatjava
 /myLocalMvnRepo
 target
+/publish
 
 *.class
 *lundfiles*.dat
@@ -36,4 +37,4 @@ hs_err_pid*
 *.evio 
 
 bin/evio2hipotest
-export.sh
\ No newline at end of file
+export.sh
diff --git a/README.md b/README.md
index e28311f4f..7dc9615ff 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # COATJAVA
 [![Build Status](https://github.com/jeffersonlab/coatjava/workflows/Coatjava-CI/badge.svg)](https://github.com/jeffersonlab/coatjava/actions)
 [![Validation Status](https://github.com/JeffersonLab/coatjava/actions/workflows/validation.yml/badge.svg)](https://github.com/JeffersonLab/coatjava/actions/workflows/validation.yml)
-[![codecov](https://codecov.io/gh/JeffersonLab/coatjava/branch/development/graph/badge.svg?precision=2)](https://codecov.io/gh/JeffersonLab/coatjava/branch/development)
+[![Coverage](https://badgen.net/static/JaCoCo/coverage/purple)](https://jeffersonlab.github.io/coatjava)
 
 The original repository for COATJAVA was named "clas12-offline-software" and is [now archived and read-only](https://github.com/JeffersonLab/clas12-offline-software).  On May 17, 2023, this new repository was created by running BFG Repo Cleaner to get rid of old, large data files and things that should never have been in the repository, giving 10x reduction in repository size, clone time, etc, and renamed `coatjava`.  The most critical, GitHub-specific aspects have been transferred to this new repository:
 
diff --git a/parent/pom.xml b/parent/pom.xml
index 1612c8c67..9912e7853 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -47,6 +47,13 @@
       <version>4.0.5</version>
     </dependency>
 
+    <!-- https://mvnrepository.com/artifact/org.jacoco/jacoco-maven-plugin -->
+    <dependency>
+        <groupId>org.jacoco</groupId>
+        <artifactId>jacoco-maven-plugin</artifactId>
+        <version>0.8.10</version>
+    </dependency>
+
   </dependencies>
 
   <build>
@@ -59,18 +66,6 @@
     </extensions>
 
     <plugins>
-      <plugin> <!-- for codecov -->
-        <groupId>org.codehaus.mojo</groupId>
-        <artifactId>cobertura-maven-plugin</artifactId>
-        <version>2.7</version>
-        <configuration>
-          <formats>
-            <format>html</format>
-            <format>xml</format>
-          </formats>
-          <check />
-        </configuration>
-      </plugin>
 
       <plugin>
         <groupId>com.github.spotbugs</groupId>
@@ -134,6 +129,26 @@
           </configuration>
       </plugin>
 
+      <plugin>
+        <groupId>org.jacoco</groupId>
+        <artifactId>jacoco-maven-plugin</artifactId>
+        <version>0.8.10</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>prepare-agent</goal>
+            </goals>
+          </execution>
+          <execution>
+            <id>report</id>
+            <phase>prepare-package</phase>
+            <goals>
+              <goal>report</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+
     </plugins>
 
   </build>
diff --git a/validation/jacoco-aggregate.sh b/validation/jacoco-aggregate.sh
new file mode 100755
index 000000000..07dafd5ab
--- /dev/null
+++ b/validation/jacoco-aggregate.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+# simple script to aggregate jacoco results, until we figure out a better way
+
+mkdir -p publish
+rm -r publish
+mkdir -p publish
+for d in $(find -type d -name 'jacoco'); do
+  target=publish/$(echo $d | sed 's;^\./;;')
+  mkdir -p $target
+  cp -r $d/* $target/
+done
+
+pushd publish
+
+cat << EOF > index.html
+<html>
+<head>
+<title>JaCoCo Coverage Summary</title>
+</head>
+<body>
+<h1>JaCoCo Coverage Summary</h1>
+<ul>
+EOF
+
+indexPages=$(find . -name "index.html" | grep 'jacoco/index')
+[ -z "$indexPages" ] && echo "ERROR: no jacoco HTML pages found" >&2 && exit 1
+for indexPage in $indexPages; do
+  link=$(echo $indexPage | sed 's;^./;;')
+  name=$(echo $link | sed 's;/target/site/.*;;')
+  cat << EOF >> index.html
+<li><a href="$link">$name</a></li>
+EOF
+done
+
+cat << EOF >> index.html
+</body>
+</html>
+EOF
+
+echo "==============="
+cat index.html
+echo "==============="
+popd